Endoluminal fluid delivery device and method

a technology of endoluminal fluid and delivery device, which is applied in the direction of catheters, guide needles, etc., can solve the problems of skin necrosis, pain for patients and inefficiency, and the process of delivering tumescents is rather tedious and far from an exact process

Inactive Publication Date: 2017-02-09
SWIFT KEVIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In patients with varicose veins, the valves do not function properly, so blood flows back toward the patient's extremities and pools in the veins.
This can lead to skin necrosis.
Disadvantages of this method can include pain for the patient and inefficiency.
The process of delivering tumescent is rather tedious and is far from an exact process.
The process of delivering tumescent fluid prior to a vein ablation procedure is time consuming and cumbersome.
The delivery of tumescent fluid is typically the longest segment of the vein ablation procedure and is often the cause of procedural complications due to the difficulty of precisely locating the needle in the perivenous sheath for multiple sticks.
It is often difficult for the physician to single-handedly administer the fluid because he/she must hold the ultrasound probe with one hand, position the needle with the other while deploying the plunger if a syringe is used.
The physician may advance the needle too far (into the vein or through the far wall of the vein) or not far enough resulting in incomplete fluid delivery and the resultant procedural complications.
Although addressing the problem of multiple injections through a patient's skin, the '165 device fails to solve other

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  • Endoluminal fluid delivery device and method
  • Endoluminal fluid delivery device and method
  • Endoluminal fluid delivery device and method

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Embodiment Construction

[0036]One embodiment of the present invention is shown in FIG. 1 through FIG. 8. The endoluminal device 1 is comprised of a handle 3 connectable to a tumescent fluid source (not shown), a catheter shaft 4, having either a double lumen configuration or single lumen configuration (not shown), a hub 9 and a needle 5. The handle may include a thumb slide 8 or other mechanism for deployment and retraction of the distal end section of a needle 5 from the catheter shaft 4 through a side exit hole 10. The elongated needle 5 is disposed within catheter shaft 4. The needle 5 includes a through lumen for fluid delivery, such as tumescent or other anesthetic, and may have a curved profile at the distal end section to facilitate positioning and advancing of the needle tip 15 through the vein wall into the perivenous space when the needle 5 is advanced through side exit hole 10. A hub 9, positioned on the catheter shaft 4 distal of the handle 3, provides an access point for inserting a guidewire ...

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Abstract

A device and method for delivering a drug from inside a body lumen to tissue surrounding the body lumen. An endoluminal drug delivery device is connectable to a drug source and includes a dual-lumen catheter, including a treatment device lumen for housing a guidewire and/or a treatment device and a needle lumen for housing a retractable needle. The guidewire exits the catheter through an opening at the distal end, and the needle exits the catheter through an exit port in the outer wall of the catheter.

Description

FIELD OF THE INVENTION[0001]The present invention relates generally to devices and methods for delivering medicinal substances to an area surrounding a hollow tubular structure. More specifically, the invention relates to an improved device and method for delivering fluid to an extravascular space using a needle which pierces through the tubular structure.CROSS-REFERENCE TO RELATED APPLICATION[0002]This application claims priority to U.S. Provisional Application No. 62 / 200,788, filed Aug. 4, 2015, which is incorporated in its entirety herein.BACKGROUND OF THE INVENTION[0003]Normally, valves in veins keep blood moving toward the heart and prevent backflow. In patients with varicose veins, the valves do not function properly, so blood flows back toward the patient's extremities and pools in the veins. This can lead to skin necrosis. Laser or RF ablation treatment creates hypercoagulability to close the abnormal vein, which is subsequently absorbed by the body. The current commonly-use...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61M25/01A61M25/06
CPCA61M25/0084A61M25/0606A61M2025/009A61M25/0071A61M25/0169A61M2025/0092A61M2025/018
Inventor SWIFT, KEVIN
Owner SWIFT KEVIN
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